634666004711 has 4 divisors (see below), whose sum is σ = 634863784800. Its totient is φ = 634468224624.

The previous prime is 634666004677. The next prime is 634666004717. The reversal of 634666004711 is 117400666436.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 634666004711 - 2¹⁰ = 634666003687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634666004717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98885231 + ... + 98891648.

It is an arithmetic number, because the mean of its divisors is an integer number (158715946200).

Almost surely, 2^634666004711 is an apocalyptic number.

634666004711 is a deficient number, since it is larger than the sum of its proper divisors (197780089).

634666004711 is a wasteful number, since it uses less digits than its factorization.

634666004711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197780088.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 634666004711 in words is "six hundred thirty-four billion, six hundred sixty-six million, four thousand, seven hundred eleven".